For many years the Giants had adequate (at best) receivers. Mostly to match our barely adequate QB's. Toomer was a big upgrade over status quo.
Then, Burress came along and I saw how having that stud guy opens up the whole offense even if he doesn't catch a pass.
If we put Marshall out there, it will instantly make the OL better, the running game better, and the QB better. Manning would win MVP. The Defense will take a while to fix and this is an offensive league right now.
This is a move that will pay off immediately.